A fair 2 sided spinner has sides numbered 1 and 2.
Write down the name of the distribution that can be used to model the number the spinner lands on from each spin.
The spinner is spun 4 times. The random variable X X\,X represents the number of times the spinner lands on 2. Find the probability that the spinner lands on 2 exactly 2 times.
Find P(1≤X<3)P(1 \leq X < 3)P(1≤X<3)
215 exam-style questions on Edexcel A Level Maths Statistical Distributions, covering 6.1 Probability Distributions, 6.2 The Binomial Distribution, and 6.3 Cumulative Probabilities. Each one has a worked solution and a mark scheme showing where the marks go.